Dash cameras

[tomtomh5]

With the amount of knobs dangerous drivers on the road I thought it might be a wise idea to invest in a dashboard camera. I'm after some general advice as to which one to buy.
I'm after a half decent one, fairy good at night (doesn't have to be military specification), must be able to read registration plates, audio isn't a biggy but preferred if possible, but the main thing I'm after is a rear facing camera. Not for parking, just for recording. My budget is around the £100 area, maybe a little more if funds are there.
I've saw this on ebay but haven't saw any reviews on them. What do we think?
Or any recommendations?

Thanks

[mrmr96]

http://www.pistonheads.com/xforums/topic.asp?h=0&a...

[fangio]

Buy two of these:-

http://dashcamtalk.com/mobius/